UC3843BD1013TR – Current Mode PWM Controller IC – SOIC-8 Package
The UC3842/UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controllers. They are specially designed for Off-Line and DC-to-DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, a high gain error amplifier, a current sensing comparator, and a high current to temple output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within a 100% duty cycle. The UC3844 and UC3845 can operate with a 50% duty cycle.
Features/Specs:
- Manufacturer Part No: UC3843BD1013TR
- Manufacturer: STMicroelectronics
- Product Type: Switching Controllers
- Series: UC3843B
- Topology: Boost, Flyback, Forward
- Number of Outputs: 1 Output
- Switching Frequency: 500 kHz
- Duty Cycle – Max: 100 %
- Operating Supply Voltage: 30V
- Output Voltage Range: 4.9V to 5.1V
- Output Current: 1 A
- Operating Temperature Range: -40°C ~ +150°C
- Brand: STMicroelectronics
- Fall Time: 50 ns
- Rise Time: 50 ns
- Mounting Style: SMD/SMT
- Package/Case: SOIC-8
Applications:
- SMPS (Switch Mode Power Supplies) circuits
- DC-DC converter circuits
- Electronics power supply
- Battery drain circuit
- Load machines
Datasheet: UC3843BD1013TR
Package Includes:
- 1 x UC3843BD1013TR – Current Mode PWM Controller IC – SOIC-8 Package
Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
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